A boy throws a ball of mass 0.25 kg straight upward with an initial speed of 20 m/s When the ball returns the boy, its speed is 17 m/s How much much work does air resistance do on the ball during its flight?

Q: The mass of an ear ring is 950 mg. Express this mass in SI unit. (a) 9.50 x 10-6 kg (b) 9.50 x 10ª…

A: Given data: Mass of an ear ring (m) = 950 mg Required: Mass in SI unit

Q: The Roman cubitus is an ancient unit of measure equivalent to about 0.445 m. Convert the 15.4-ft…

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Q: True or False: A liter is slightly larger than a quart.___________

A: A liter and a quart are the units of the volume.

Q: One side of Face centered unit cell is 4 x10^-8 cm. Find the radius in nm.

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Q: A different rod with the same mass per unit length, 510 g/m, is bent into an asymmetric Z shape as…

A: The Centre of gravity of a body is an imaginary point at which the total weight of the body is…

Q: A 550-turn solenoid is 10 cm long. The current into it is 35 A.A 3.5 cm -long straight wire cuts…

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Q: Convert 200 25 mi/hr to yards/sec (use 1m=1 094yards) Express your answer in 2 decimal places Answer…

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Q: Find the final velocity after a perfectly inelastic collision with two objects, both of mass 4.0kg,…

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Q: Convert 3.7 metric tons to slugs ( use 1 metric ton = 1Mg). Express your answers in 2 decimal…

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Q: A particle with a mass of 2.2 x 10-20 kg is oscillating with simple harmonic motion with a period of…

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Q: Six electrons are trapped in a one-dimensional infinite potential well of width L , in h? , (assume…

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Q: The total volume V of the real house is that fa triangulas pism (of heigut h=3.om and base area A =…

A: Solution: Given that h = 3 m base area A = 20x12 m2

Q: O). What is through the rectangularly shaped volume? Assume 3 significant digits. X 7 tw 2.0 m ZA…

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Q: object measured by a __________ in grams and does not change…it stays the _________

A: The gram and kilogram are two units used to measure mass in the metric system.The basic SI unit of…

Q: The dimension of a room is 12 feet by 20 feet. Compute the area of the room square yards. Given 1…

A: The dimension of a room is 12 ft by 20 ft. So, length L=20 ft and breadth b=12 ft. The conversion…

Q: The volume of a sphere is increasing at a rate of  0,03 m3/min. What is the tax rate of change from…

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Q: What is the uncertainty, (±), of: (a) 9.5 cm (b) 17 mL (c) 2.0100 g

A: uncertainty is the values which cannot be precisely or accurately measure with a given set of…

Q: (m, kg, N). 1.3 A mass weighing 25 N is suspended from a cord that can be moved vertically, up or…

A: Given : Weight of mass suspended, w = 25 N The cord can be moved up and down.

Q: can you check your answer for the last problem because I am getting 1.07

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Q: a. Draw an energy level diagram (doesn't have to be to scale) indicating the transitions that…

A: We know that for a particle trapped in an one dimensional infinite potential well (square) must have…

Q: Calculate the density of solid from the following data: (a) Mass of solid (M) = 72g (b) Initial…

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Q: .02 inches per second is equivalent to how many ft per hour? using dimensional analysis

A: Given  0.2 inch  per second  Let x be the value in ft /hr  Thus    0.2 inch /sec = x ft /hr

Q: 4,320 minuTES ARE EQUIVALENT TD DXTS? TEET ARE THEKE IN ARODM MEAVUK

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: You have a twin that stays at home on the Earth while you travel in a spaceship. You leave Earth…

A: Given, You and your twin age=20years Total travel time, tspaceship =5years After 5 years, a long…

Q: 1 Giga equal to 1x10 9. Select one: O True O False

A: Given statement is false

Q: Round off the answer to the same number of significant digits as are in the measurement with the…

A: We are given 2 physical quantities. First is dimension of mass. Other is dimension of volume. We…

Q: A liter of water water weighs about 8.48 N. Compute its mass in kg.   Round your answer to 3…

A: We are given weight of water. This weight is of 1 liter water. We find the mass of water. The…

Q: The greater the number of significant figures, the the uncertainty.

A: Definition of uncertainty: Uncertainty means that there is a range of possible values within which…

Q: Convert 660,00 furlongs/fortnight to ft/min

A: 1 furlong is 220 yards 1 yard = 3 feet 1 fortnight is 2 weeks 1 week = 7 days 1 day = 24 hours  1…

Q: EXOQ Compare the auxillary equations in the cases of the double rod ordented Vertically (figure…

A: Step 1: Auxiliary equation comparision ;(a) Vertical rod In figure 1.2(a) :For the vertical double…

Q: Calculate .456 x 12.54 keeping only significant figures.

A: Given : To calculate  .456 x 12.54 keeping only significant figures.

Q: Determine how many sig figs are in the following values. 1. 267562

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Q: The mass of an ear ring is 950 mg. Express this mass in Sl unit. (a) 9.50 x 10-6 kg (b) 9.50 x 104…

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Q: Can you explain why we need to multiply the 3000 by pi/180

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Q: A large sheet of construction paper measures 20mm by 15mmand the volume is 4mm³, where v=lwt A. What…

A: A) Write the expression for the volume and substitute the required values.

Q: so b= 6.09 s^-2  but you used 5.21. when I plug in the answers its wrong, can you please fix this.

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Q: Using the rules of significant figures, calculate the multiplication of A = 48.399 and B = 0.849:

A: To multiply A = 48.399 and B = 0.849 using significant figures, we follow these steps: Count the…

Q: (b) To what temperature must the body be heated until its peak thermal radiation is in the red…

A: A blackbody is an ideal concept which absorbs all the wavelengths and also emits all the wavelengths…

Q: Your answer is partially correct. The figure shows wire 1 in cross section; the wire is long and…

A: Givencurrent in wire 1 (I1)=4.20 mADistance (d1)=2.48 cmDistance (d2)=5.14 cmcurrent in wire 2=6.83…

Q: The uniform beam has a mass of 52 kg per meter of length. Determine the reactions at the supports.

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Q: Each side of a cube is measured to be 7.293 m. What are the total surface area and volume of the…

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Q: 3. 1 slug is equivalent to 1 Ib.s^2/ft O a. True O b. False

A: Given : 1 slug is equivalent to 1 lb.s2/ft. Whether above given conversion unit is true or not.

Q: wouldnt it be just 30 divided by 1.5 = 20

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